Prussian Secret inquiry in Sydney within the month: Racing NSW

Racing NSW says it expects the inquiry into Prussian Secret's run in the Tamworth Cup, and its withdrawal from the Gunnedah Cup, to get underway within the month.

Deputy Chief Steward Greg Rudolph, who is chairing the inquiry, says it will examine allegations the horse was drenched three hours prior to its run.

The inquiry is scheduled to begin at the same time a police investigation into alleged corruption in regional racing in the Tamworth area is continuing.

Greg Rudolph says the stewards inquiry will be heard in Sydney.

"Given the gravity of the matter the inquiry will be held in Sydney at the head office of Racing NSW and we're mindful the matter has been on the table for some time," he said.

"We're corresponding with the legal team of the people involved and trying to negotiate a suitable date, hopefully, within the next month."

Greg Rudolph says a vast amount of evidence and many witnesses have been identified, which is why the inquiry will be held in Sydney.

"What we'll do is prepare a brief of evidence and, whilst there's no absolute right of legal representation in a stewards inquiry, we would expect that the lawyers for the parties involved would certainly make application to sit before the stewards with their clients," he said.